html{
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background-image: url(picture/IMG_3854.JPG);
    background-repeat: no-repeat;
    background-size: cover;
}
#box{
    width: 400px;
    height: 300px;
    text-align: center;
    background-color: rgba(128, 123, 123, 0.404);
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    border: 1px white solid;
    border-radius: 20px;
    transition: .5s;
}
#box:hover{
    box-shadow:0 0 40px white;
}
li{
    list-style-type: none;
}

h1{
    width: 200px;
    margin: 20px auto;
    color: rgb(53, 31, 31);
    cursor: pointer;
    transition: .5s;
}
h1:hover{
    color: tomato;
    text-shadow:0 0 10px tomato;
}



#user{
    margin: 10px;
    width: 150px;
    background-color: rgba(128, 123, 123, 0.404);
    padding: 10px 10px 10px 40px ;
    border:1px solid rgb(255, 255, 255);
    border-radius: 20px;
    outline: none;
    transition: 500ms;
}
#user:hover{
    box-shadow:0 0 10px white;
}

#pwd{
    margin: 10px;
    width: 150px;
    background-color: rgba(128, 123, 123, 0.404);
    padding: 10px 10px 10px 40px ;
    border:1px solid rgb(255, 255, 255);
    border-radius: 20px;
    outline: none;
    transition: 500ms;
}
#pwd:hover{
    box-shadow:0 0 10px white;
}


#box input[type="text"]:focus,#box input[type="password"]:focus{
    width: 220px;
}
#btn{
    color: rgb(24, 107, 3);
    margin-top: 20px;
    background-color: rgba(243, 243, 243, 0.753);
    border: 1px white solid;
    border-radius: 15px;
    padding: 10px 20px 10px 20px;
    font-weight: 900;
    outline: none;
    cursor: pointer;
    transition: 500ms;
}
#btn:hover{
    box-shadow:0 0 10px white;
    text-shadow:0 0 5px rgb(24, 107, 3);
}

input::-webkit-input-placeholder{
    color: rgba(0, 0, 0, 0.575);
}
input::-moz-placeholder{
    color: rgba(0, 0, 0, 0.575);
}
input::-ms-placeholder{
    color: rgba(0, 0, 0, 0.575);
}
i{
    position: relative;
    left: 35px;
    top: 1px;
    color: white;
    transition: .5s;
}
#box li:hover i{
    text-shadow:0 0 5px white ;
}